The prof quests at the DMF (Herb and Alch) are not appearing for my lvl 110 Horde Mage. I’ve maxed out all previous expansions and vanilla levels of both profs. The daily DMF quests appear and the prof quests appear for my other characters.
Are your Classic (Vanilla) professions at 75 or better?
Not showing up for my Maghar or my Demon hunter. Showed up for my human warrior.
For the Maghar and DH, it’s likely you have not leveled the profession in classic to 75/300 which is the pre-req for getting the quest.
The OP stated he had Classic maxed out for his professions so his issue may be a UI issue requiring a complete UI reset.